58 DR. N. H. ALCOCK ON THE VASCULAR [Eeb. 1, 



AGARISTID;E. 



89. Xanthospiloptebtx superba Butl. 

 Sbiringoma and Makaya districts, November 1896, 



NOCTUID^. 



90. T^niopyga syltina Stoll. 

 Cbiperoni, September 1896. 



H T p s I D -^. 



91. Egybolia vaillantika Stoll. 



Inure. 



Geometrid^. 



92. COMIB.TKA LEUCOSPILATA AValk. 



Portuguese East Africa (exact locality not noted). 



3. On the Vascular System of the Chiroptera. By N. 

 H. Alcock, B.A., M.D.^ Assistant to the Professor of 

 Institutes of Medicine, Trinity College, Dublin \ 



Part I. — Thoracic Vessels of Pteropus medius ; with a 

 Summary of the Literature of the Chiroptera. 



[Received October 13, 1897.] 



The anatomy of the Chiroptera has been the subject of many 

 and interesting researches. Dobsou^, in addition to numerous 



1 Comiuunicated by Prof. G. B. Howes, F.E.S., F.Z.S. 



'■^ DoBsoN. Gr. E. — ' Catalogue of the Chiroptera in the British Museum,' 

 .567 pp., 30 pis. ; London, 1878 (contains many references, chiefly to syste- 

 matic papers). ' Monograph of the Asiatic Chiroptera ' (includes European 

 forms) ; London, 1876. " Secondary Sexual Characters in the Chiroptera,'' Proc. 

 Zool. Soc. 1873, pp. 241-2.'J2. " On the Structure of the Pharynx, Larynx, and 

 Hyoid Bones in the Genus Epomoplwrus'' loc. ait. 1881, pp. 68.5-693. " Mono- 

 graph of the Group Afoload," loc. cit. 1876, pp. 701-735. " Structure of Feet, 

 Claws, and Wing-membrane of Mystacma tuherculata" loc. cit. 1876, pp. 486-488. 

 " Monograph of the Genus Taphozous," loc. cit. 1875, pj5. 546-556. " On 

 Peculiar Structures in the Feet of certain Mammals, which enable them to 

 walk on smooth perpendicular surfaces," loc. cit. 1876, pp. 526-535, pi. Iv. 

 ( Vct-peruqo, Mysfaciiia, Thyroptera, Hyrax). " On the Phalanx missing from 

 certain Digits in the Manus of Chiroptera,'' Journ. Anat. Phys. xvi. p. 200. 

 " Osteology of Tricsnops pcrsicus," Journ. Asiatic Soc. Bengal, xli. pp. 136-142, 

 pi. y\. " Chiroptera in Genoa Civic Museum etc.," Ann. Mus. Genov. (2) ii. 

 pp. l(i-19. " Eeport on Accessions to our Knowledge of the Chiroptera etc. in 

 1878-1880," Rep. British Assoc. 18S0, pp. 169-197. "Geographical Distri- 

 bution of Chiroptera," loc. cit. 1878, pp. 158-167. "Chiroptera in Gottingen 

 Museum," Bull. Soc. Zool. France, 1880, pp. 232-239. " Pteropus rodericensis," 

 Phil. Trans, clxviii. p. 457. " Conspectus of Sub-orders, Families, and Genera 

 of Chiroptera, arranged according to their natural afEnities,'' Ann. N. H. (4) 

 xvi. pp. 345-357, and additional remarks, loc. cit. (4) xviii. pp. 34.5-347. 



